Right Ventricular Dimensions

All measurements are in end-diastole* in the RV-focused A4C view (not the standard A4C view)

RVD3 - RV Longitudinal Diameter

Measured from the tricuspid annulus to the RV apex

RVD2 - RV Mid Diameter

Measured at the level of the LV papillary muscles

Perpendicular to the RVD3

RVD1 - RV Basal Diameter

Measured at the widest transverse diameter of the basal third of the RV

RV-Focused A4C View

Obtain this by moving laterally and angling medially while keeping the LV apex centred to maximise RV size

*End-Diastole

Measured just before mitral valve closure — usually the frame with the largest LV cavity or at the start of the QRS/R-wave on ECG